Finding the Fourth Proportional to 912,464.19, 1,259,135.53 and 504,490.88
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Solution
The fourth proportional to 912,464.19, 1,259,135.53 and 504,490.88 is: 696,161.45
Step by Step Solution
- Step 1: Write the proportion equation
912,464.19 : 1,259,135.53 = 504,490.88 : x - Step 2: Convert to fraction form
912,464.19/1,259,135.53 = 504,490.88/x - Step 3: Cross multiply
912,464.19x = 1,259,135.53 × 504,490.88 - Step 4: Simplify right side
912,464.19x = 635,222,396,293.34 - Step 5: Solve for x
x = 635,222,396,293.34/912,464.19 - Step 6: Final answer
x = 696,161.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.